31645 -- U.S. ZIP code Municipality (1990): RAY CITY, Georgia All ZIPs for this municipality (1990): 31645 Population (2000): 3373 Housing Units (2000): 1465 Land area (2000): 48.459660 sq. miles (125.509939 sq. km) Water area (2000): 0.736409 sq. miles (1.907291 sq. km) Total area (2000): 49.196069 sq. miles (127.417230 sq. km) Located within: Georgia (GA) Location: 31.070627 N, 83.202863 W